baber/WOPTO huggingface dataset:
Patent GB-893517-A (GB)
Title: Copolymers of methyl methacrylate possessing good elongation values
Inventor: LANG JOHN LESTER
IPC: C08F220/44
Filed: 1960-10-19
Abstract: Methyl methacrylate and acrylonitrile with or without styrene are fed as a homogenous liquid mixture into a continuous equilibrium polymerization system and a copolymer containing from 5 to 75% methyl methacrylate, up to 50% styrene and 15 to 50% acrylonitrile, the percentage acrylonitrile being greater than the percentage styrene less 10% and greater than the percentage methyl methacrylate less 55% is continuously withdrawn therefrom. The temperature of polymerization is preferably between 130 DEG  and 155 DEG C.
Patent GB-510422-A (GB)
Title: Improvements in and relating to tobacco feeding mechanism for continous rod cigarette making machines
IPC: A24C5/39
Filed: 1938-03-16
Abstract: 510,422. Cigarette-making machines. AMERICAN MACHINE & FOUNDRY CO. March 16,1938, No. 35872. Convention date, April 15, 1937. Divided out of 507,444. [Class 130] A tobacco-feeding mechanism for continuousrod machines comprises a conveyer member or plate 6 mounted on resilient supports 9 and vibrated to feed a continuous layer of tobacco over its surface, and means located above the surface for maintaining the layer at a substantially uniform thickness. As shown, the plate 6 is secured by an adjustable screw 11 to a bracket 10 which may be vibrated by an electromagnet as described in Specification 503,685. Above the plate 6 are located parallel vertical vanes 42 secured to bars 43 adjustably mounted in the side walls of the feeding mechanism by screws 44 engaging slotted end portions of the bars. Tobacco is showered on the upper end of the plate 6 and is fed by the plate to the upper surface of a member 7, on which it is compacted and forwarded by a roughened, ridged or indented roller 14, adjustably mounted in frames 40. Strips are severed from the forward edge of the layer, and thrown down the feed shoot 18 by a roller 16, which may be provided with axially extending cutter bars 15a or rows of picker pins 15, or alternating cutter bars and rows of pins. The rows of pins are preferably positioned to provide a helical arrangement of the pins. The severed tobacco sections are thrown down the shoot 18 on to a travelling band or cigarette-paper strip on which they are deposited in laminations to produce a more uniform cigarette rod. Specification 507,444 also is referred to.
Patent GB-363108-A (GB)
Title: Improvements in lamp shades
IPC: F21V1/00
Filed: 1930-11-28
Abstract: 363,108. Lamp shades. DENTON, C. W. and MITCHELL, B..W., High Street, Portslade, Sussex. Nov. 28,. 1930, No. 35932. [Class 75 (ii).] A lamp shade comprises a truncated conical or pyramid-like holder 1, or segment thereof, with radiating channels 5, 6 on its inner face to carry a number of transparent panels arranged in stepped formation, the pairs of channels 6 engaging one set of panels being stepped inwards relative to the channels 5 supporting the intervening panels. As shown in Fig. 1, pieces of sheet material 4 are laid across successive pairs of ribs 2 and project beyond the latter to form channels, their ends also being bent over to form the inwardly, displaced channels. In the form shown in Fig. 5, the ribs are formed with channels 3 in their side faces. A number of apertures 11 may be formed in the holder. For use as a wall shade, the holder may be semicircular.
Patent GB-341633-A (GB)
Title: Improvements relating to electric bells
IPC: G10K1/064
Filed: 1929-11-23
Abstract: 341,633. Electric bells. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, London, and DUTTON, G. F., 32, The Avenue, Grove Park, London. Nov. 23, 1929, No. 35935. [Class 13.] The hammer of an electric bell of the kind in which the armature of an electromagnet is caused to oscillate by an alternating or pulsating current to actuate a hammer between two bells or gongs e.g. a trembler bell or a magneto bell for telephone instruments, is mounted on its stem so as to be free to move within limits relatively to the stem in the direction in which it is driven so as to strike the sounding members without damping the vibrations. The hammer A may be pivoted by a pin L between the sides S of the stem, its extreme movements being limited by stops M, N, or the hammer head may be loosely mounted on a rod-like stem.
Patent GB-1214419-A (GB)
Title: Lead-in table for paperboard slitting and transverse cut-off machinery
Inventor: WILLARD EDWIN JAMES
IPC: B65H35/02
Filed: 1969-07-17
Abstract: 1,214,419. Creasing or scoring. HARRISINTERTYPE CORP. 17 July, 1969, No. 36061/69. Heading B6J. [Also in Division B8] A table for guiding one part w<SP>1</SP> of a longitudinally slit web to a transverse cutter 22 and the other part to a transverse cutter 24 comprises a number of slats 40, each slat consisting of two parts 44, 48 of inverted U-shape so that they can nest in one another, the parts 44 being pivotable about a fixed axis 46 and the parts 48 being pivotable about an axis 50 on a horizontally movable frame 92, and means coupled to the parts 44 for raising those slats over which the web part w<SP>11</SP> passes. As shown, the original web w is passing between a set 16 of slitting and scoring elements mounted on a support 18 carrying other sets 12, 14 of such elements. During a run using one set of elements 12 ... 16, the other sets can be adjusted for succeeding runs. A pit p affords access to the elements. Whilst the machine is operating, the frame 92 is positioned so that the pivot 50 is close to the element, e.g. 16, in use. A flap or hood 52 at the rearward end of the carriage 92 encloses a lamp 124 which lights up the area around the idle set 14 to facilitate adjustment of the set. The frame 92 can be moved by a pneumatic cylinder 98, Fig. 2, to the operative position shown in Fig. 1, or to a retracted position where the flap 52 and pivot 50 are outside the arc of rotation a of the support 18 to permit the support to be rotated for bringing another set of slitting, &c., elements into operative position. The side members of the frame 92 are supported on ballbearings and their lower edges are formed as racks 116, Fig. 1, engaging pinions 84 to ensure even travel of the side members. The slats 40 can be raised by pneumatic cylinders 42 controlled by valves 43 operated by switches 60 mounted across the top of the slitting, &c. apparatus, there being one cylinder 42, valve 43 and switch 60 for each slat. A series of trigger elements 62, one for each switch 60 forms part of each set of elements 12 ... 16, the elements 62 being set so that they operate those switches 60 corresponding to the slats 40 that have to be raised. If the web is slit into three sections, the cylinders 42 are arranged to raise certain of the slats to a position below the fully raised position so as to direct one section of the web to an appropriate severing device such as 22, 24.
Patent GB-1261099-A (GB)
Title: Improvements in or relating to the assembly of recoil-less gun cartridges
Inventor: EDLUND HANS GEORG ULF
IPC: F42B5/05
Filed: 1969-07-17
Abstract: 1,261,099. Clamps. FORENADE FABRIKSVERKEN. 17 July, 1969, No. 36077/69. Heading E2B. [Also in Division F3] A primer 2 for a recoilless gun cartridge is secured in the open rear end of the cartridge case 1 by means of a ring 3 having an inwardly extending flange 12 for abutting a bottom plate 7 of the primer and a circumferential groove 14 whereby the screws 5 lock the ring and primer in the cartridge case.
Patent GB-411055-A (GB)
Title: Improvements in or relating to spraying means
IPC: B65D83/16
Filed: 1933-12-22
Abstract: 411,055. Spray-producers. CASAS, J. A. A., 31, Rue Claris, Barcelona, Spain. Dec. 22, 1933, No. 36180. Convention date, Dec. 23, 1932. [Class 69 (iii).] Apparatus for spraying disinfectants &c., operated by a door, pull chain of a flushing cistern &c. is operated during the first part of the movement of the door &c. so as to render the amount sprayed independent of the extent or speed at which the door is moved. Liquid contained in a vessel 1, Fig. 1, is sprayed by compressed air delivered from a pump 7 the piston 10 of which is connected bv a link 12 to a lever 12<1> loosely turning on a pin 13 and carrying a second arm 14 connected by a link 15 to a spring 16 secured to the casing. Mounted on the lever 12<1> is a second lever 17 one end of which is adapted to strike the casing 3 while the other is provided with a claw 17<1>. Under the action of a spring 17<11> the claw 17<1> engages a notch 18<1> on a disc 18 mounted on the pin 13 and rotated by the movement of a door &c. through links 19, 20. In action the opening of the door rotates the disc and with it the levers 17, 12<1> thus pulling the piston into the position shown, when the lever 17 contacting with the wall of the casing removes the detent 17 allowing the spring 16 to actuate the lever 12<1> and thus move the piston to eject air through the opening 8 and thence through a bore 9, Fig. 3, to spray liquid at a nozzle 6 which may be turned in the casing to vary the direction of the spray. The piston 10 is provided with inlet openings 10<1> an air-tight cup leather 10<11> and a rubber buffer 11 to prevent shock at the end of the delivery stroke.
Patent GB-1210856-A (GB)
Title: Powder metallurgy process
IPC: C22C38/00
Filed: 1968-07-30
Abstract: 1,210,856. Sintered tool steel. AEROJET - GENERAL CORP. July 30, 1968 [July 31, 1967; July 3, 1968], No.36293/68. Heading C7D. A sintered tool steel is made from irregularly shaped fractured pre-alloyed tool steel particles made by impact pulverizing, the particles being hydrogen reduced and cooled at a rate less than 300‹ F . /hour, to give a Rc hardness not more than 55 cold pressed at e.g. 60, 000 - 100, 000 p.s.i. and sintered to a theoretical density of at least 85%. 0À1-1% by weight of carbon may be added to the particles prior to hydrogen reduction at 1750‹ - 1875‹F. and compaction may be affected mechanically, isostatically or by explosion to a green density of 55-86%. Sintering is effected in hydrogen or a carbonaceous atmosphere at 2150‹-2350‹F. or by hot rolling at 2000-2200‹ F. or explosively compacted. Liquid phase sintering may be carried out with the addition of MoS2 or VB2 (about 0À1% by weight) or up to 5% of metal halides or 0À25% of Ni, Cn or Co to the tool steel powder. The sintered body is worked as by swaging, forging or rolling e.g. at 1800-2000‹ F. Heat treatment is carried out by oil quenching from 2200‹ F. and double tempering at 1050‹F. After the oil quench super cooling in liquid Nz at -320‹ F. may be carried out.
Patent GB-175498-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B57/28
Filed: 1920-12-29
Abstract: 175,498. Campion, E. E. Dec. 29, 1920. Lock-stitching by shuttles.-A bobbin consists of a thin wire spindle 1, the ends of which form spiral flanges 2. The bobbin fits within the shuttle 5 and rotates on its flanges 2.
Patent GB-943619-A (GB)
Title: Improvements in or relating to book forming and pressing machines
Inventor: MUNRO COLIN CATHCART
IPC: B42C13/00
Filed: 1958-11-12
Abstract: 943,619. Bookbinding machines. THOMAS NELSON & SONS Ltd., C. C. MUNRO, R. JACK, and H. S. MERSON. Feb. 11, 1960 [Nov. 12, 1958], No. 36384/58. Heading B6A. [Also in Division B8]  A book forming and pressing machine includes a pair of endless belts 1, 2 for conveying a succession of cased-in books past heated creaser elements 52 which engage the crease lines of the book covers to partially or wholly dry the glue applied during the casing-in operation, the belts being backed by rigid plates 23, 24, at least one of which is adjustably mounted to apply pressure to the adjacent belt and hence to the books conveyed thereby. The backing plate 23 is movable towards and away from the adjacent run of the endless belt 1, to vary the pressure applied to the cased-in books, by means of a shaft 26 adapted to be rotated by a hand-wheel 29, which drives a plurality of spaced worm driven shafts 27 mounted in brackets 28 fixed to the plate 23. The plate 24 is fixed in position. The endless belts 1, 2 are formed from flexible, inextensible, rubber coated, webbed material and pass around rollers 3, 5 and 4, 6 respectively, the rollers 3, 4 being coupled to an electric motor through reduction gearing. The endless belts are maintained taut by adjusting the positions of rollers 5, 6 in the longitudinal direction. The spacing between the adjacent runs of the endless belts may be varied by adjusting the position of rollers 3, 5 in the transverse direction. Each backing plate 23, 24 has a bar 47 mounted thereon, which carries the heated creaser elements 52 and sets of polished brass rollers 32-35. Each of said rollers has a peripheral flange 37 to engage the crease lines in the cased-in books and each set of rollers is carried by a member 44 slidable in grooves in side pieces 46 depending from the corresponding bar 47. A tension spring 50 extending between the side pieces 46, engages pins 51 screwed into the member 44 to urge the set of rollers into contact with a cased-in book. A pin 49 projecting from the underside of the bar 47 engages a slot in the member 44 to limit its movement. The heated creaser elements comprise bars 56 having heating elements embedded therein and clamped to creaser strips 59 by steel clamps 58. A vertically adjustable platform 64 is provided at the input end of the machine and includes a loaded plate 63 mounted with its top edge level with the flanges on the rollers.
Patent GB-1481429-A (GB)
Title: Apparatus for storing at least one sheet
IPC: B65H29/58
Filed: 1974-08-19
Abstract: 1481429 Feeding and delivering sheets XEROX CORP 19 Aug 1974 [22 Aug 1973] 36395/74 Heading B8R An original 14<SP>1</SP>, Fig. 1, is delivered from an exposure platen 62 of an electrostatographic copying machine and, when duplex printing is desired, fed along a curved path so as to be inverted, the path being defined by a curved guide plate and by a web 20 wound from a roll 21 to a roll 22, the sheet then being stored between the web layers of the roll 20. In order to later feed the stored sheets to the platen upside-down, a cylindrical shell 31, Fig. 2, having a lip portion 33 is rotated clockwise through for example 360 degrees, thus causing the web to assume the position shown in Fig. 4. A similar storage and reversal means is used for the copy sheets 14.
Patent GB-1516149-A (GB)
Title: Load handling installation and vehicle therefor
IPC: B66F9/06
Filed: 1975-09-04
Abstract: 1516149 Vehicles SOC ANON DES ELEVATEURS LATERAUX 4 Sept 1975 [6 Sept 1974] 36464/75 Heading B7L A load-handling installation comprises a vehicle 10 which is movable along a gangway 5 in a framework, the vehicle 10 comprising tyred wheels 11 which support the vehicle when the latter is outside the gangway, but when the vehicle enters the gangway 5 flanged rollers 13 attached to the wheels 11 engage in section members comprising horizontal tracks 17, 18 so that the wheels 11 are raised out of engagement with the ground. Fig. 3 shows one way of engaging the rollers in the trucks at the beginning of a gangway, a hump 50 being provided along which the wheels 41 initially run from the position A to position B, and in moving from position B to position C the associated flanged roller 45 engages a track 43 whose height above the ground is sufficient to cause each wheel 41 to loose contact with the ground. Alternatively the hump 50 could be omitted and the ground level inside the gangway made lower than that outside the gangway, Fig. 4 (not shown). The wheels 11 or 41 include driving wheels as well as wheels for steering the vehicle when outside the gangway.
Patent GB-872326-A (GB)
Title: Method of joining thermoplastic polymers
IPC: B29C65/50
Filed: 1957-11-25
Abstract: Thermoplastic polymers, at least one of which is crystalline polypropylene, are joined by placing a resistance wire between the polymers, heating the wire by an electric current to a temperature sufficient to melt the polypropylene adjacent the wire, and then allowing to cool, the wire remaining embedded in the joined materials.  Sheets and pipes or tubes may be joined by the method specified.
Patent GB-1482118-A (GB)
Title: Apparatus for performing a work operation on a tubular body
IPC: B21D43/00
Filed: 1974-08-20
Abstract: 1482118 Automatic positioning CONTINENTAL GROUP Inc 20 Aug 1974 [21 Aug 1973] 36658/74 Heading G3N In the positioning of a tubular body (can) in a predetermined angular orientation, a registration mark 38 on the body which rotates on platen 18 is detected by scanner 36, verified as correct by gating system 42, and, when the end of the mark passes the scanner, the speed of the servomotor 14 is reduced, from a constant speed, progressivley to zero, the speed being function of the d/a converted difference between the contents of counters 58, 48, the former containing a pre-set value representing a desired stopping orientation, the latter being counted, by pulses from motor driven pulse generator 30, from a reset value prevailing when the end of the mark is detected. The positioned body is embossed in registration with printing already applied to it, or is reshaped, an internal pressure bag inserted into the body pressing its walls against a surrounding mould carried to the stations. There may be a plurality of moulding stations on a turret, and two orientation arrangements in simultaneous use, switches 62, 64, 66, 68 coupling the servomotor, scanner and pulse generator for a typical station to an orientation arrangement, and establishing a pre-set count particular to the coupled station in counter 58 hence establishing a particular stopping orientation. Each servomotor is associated with a tachogenerator 22 and servo-amplifier 26. The operation of the switches initiates a cycle of timer 44, and within the timing interval either the mark is scanned and verified, verification occurring if counter 48 reaches a predetermined count value while the mark is being scanned, the counter being reset by the verification signal, from unit (94), Fig. 2 (not shown); or the body is rejected under control of a signal from unit (116). End of mark detection unit (108) which normally functions in response to a verified mark to switch the servo drive from the constant speed source 52 to the variable speed source 54 initially in a state of saturation, and to enable counter 48 to count the pulses from the pulse generator without being reset, may also cause resetting of the counter 48 if the detected mark is too short. If the motor reverses the counter is reset. The pulse generator is optically actuated, and direction sensitive. Pre-set counter, (58) Fig. 4 (not shown). Each row of a cross point matrix system is coupled to lines each representing a station, diode (336) being inserted into each row at column positions corresponding to bit positions of the pre-set number desired for the station.
Patent GB-903455-A (GB)
Title: Optical glass
IPC: C03C3/15
Filed: 1958-11-14
Abstract: 903,455. Optical glass compositions. ZEISSSTIFTUNG, CARL, [trading as JENAER GLASWERK SCHOLT & GEN.]. Nov. 14, 1958 [Nov. 16, 1957], No. 36786/58. Drawings to Specification. Class 56.  Optical glass having a content of La 2 O 3 + ThO 2  > 45% by weight, a total divalent metallic oxide content of < 13.5% by weight including < 4% by weight of CdO, a content of Ta 2 O 5 < 12% by weight, consists of 41% to 100% by weight of a component I, 0 to 17% by weight of a component II, 0 to 30% by weight of a component III, and 0 to 12%, minus any content of Ta 2 O 5  from component I, by weight of a component IV, wherein the component I consists of La 2 O 3 , ThO 2 , B 2 O 3  and Ta 2 O 5  in a range of proportions which when represented graphically on a triangular phase diagram is defined by the co-ordinates: the expression B 2 O 3 +0.4 Ta 2 O 5 ; indicating that 1 part by weight of Ta 2 O 5  can replace 0.4 part by weight of the B 2 O 3 , a maximum of 4.8 parts by weight of B 2 O 3  being replaceable by a maximum of 12 parts by weight of Ta 2 O 5 , with the proviso that when the expression B 2 O 3 + 0.4 Ta 2 O 5  lies within the range 39.0-40.0, the Ta 2 O 5  content is less than 5, when it lies within the range 39.5-40.0, the Ta 2 O 5  content is less than 2.5, and when it lies at 40, the Ta 2 O 5  content is zero, the component II has the following weight percentage composition within the ratio: the component III has the composition of such a glass of a multi-component system B 2 O 3 - alkali earth metal oxide-ZnO-CdO which has no appreciable tendency towards crystallization, and the component IV consists substantially of oxides chosen from those of tetra or higher polyvalent element(s) having atomic number greater than 40 and less than 3% by weight, based on the total weight of the glass, of oxide chosen from SiO 2 , Al 2 O 3 , Na 2 O, wherein the composition of the component I lies only in the La 2 O 3  range containing 57-60% La 2 O 3  when the sum of the content of component II plus component III amounts to at least 5% by weight, and wherein the lower limit of the content of component I and the upper limit of the content of component III is restricted in such a manner that the mol. proportion of the total divalent metallic oxide content + Li 2 O to the total B 2 O 3  content must be less than 0.2. The refractive index preferably is in the range 1.70 to 1.82. Component IV preferably consists of oxides chosen from ZrO 2 , SnO 2 , Ta 2 O 5 , Nb 2 O 5  and WO 3 . A large number of examples are given, including a number consisting of component I only. Didymium oxide may be used in small amounts, the pink colour neutralizing glasses with a yellowish tinge. Specifications 462,304, 649,514 and German Specification 949,686 are referred to.
Patent GB-1093688-A (GB)
Title: Connecting rods with divided heads
IPC: F16C9/04
Filed: 1966-08-17
Abstract: 1,093,688. Connecting-rods. SULZER BROS. Ltd. Aug. 17, 1966 [Sept. 24, 1965], No. 36828/66. Headings F2H and F2T. In a connecting-rod 1 having a divided head with the parting surfaces 2 extending obliquely to the rod axis and in which the cap 4 is secured to the saddle 3 by screws 6, in order to reduce the bending stresses occurring in the screws during operation, the load on each screw is transmitted to the cap through a sleeve or bushing 11 arranged between the outer end of the screw and a part of the cap adjacent to the parting surfaces. The bushing 11 extends with clearance through a counterbore 12 except for a part 13 where it is a close or force fit for alignment. The screw 6 has a reduced portion 10 and a collar 14 for centring the outer end of the bushing. In an alternative arrangement the bushing 11 is replaced by a sleeve integral with the cap.
Patent GB-370439-A (GB)
Abstract: 370,439. Pipe joints. ENGLISH STEEL CORPORATION, Ltd., and ANDERSON, D. M., Vickers Works, Sheffield. Nov. 8, 1930, No. 33721. [Class 99 (i).] In a pipe joint a sealing ring 3 of channel section is held in internal recesses in the pipe ends 1, 2 by fluid pressure, the pipe ends being secured by external arcuate clamps 5 which engage flanges or projections 4. In a modification a plurality of flanges is formed on each pipe end, and the clamps have corresponding internal ribs which engage between the flanges. The engaging faces of the clamps and flanges may be radial or conical, and they may be of screw form of different or opposite pitch, so that the pipe ends are drawn together on rotation of the clamps. The clamps may be secured by friction or by bolts, or by thin flexible or hinged bands. The engaging faces may be coated with copper, chromium, or aluminium.